Your comfort zone grows smaller every time your courage grows larger.

Every time you do something that previously frightened you, the region of things that feel manageable expands, and the area you were protecting becomes less necessary. The comfort zone does not shrink through willpower; it shrinks because your evidence about yourself changed. This is why courage is cumulative. Each instance makes the next one slightly smaller.

Do one thing this week that is uncomfortable but not actually risky, deliberately chosen. Speak up, ask, go alone. The specific thing matters far less than the accumulation.